US7042682B2 - Fully shielded perpendicular recoding writer - Google Patents
Fully shielded perpendicular recoding writer Download PDFInfo
- Publication number
- US7042682B2 US7042682B2 US10/688,046 US68804603A US7042682B2 US 7042682 B2 US7042682 B2 US 7042682B2 US 68804603 A US68804603 A US 68804603A US 7042682 B2 US7042682 B2 US 7042682B2
- Authority
- US
- United States
- Prior art keywords
- shield
- write pole
- downstream
- upstream
- side shields
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
- G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3143—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding
- G11B5/3146—Disposition of layers including additional layers for improving the electromagnetic transducing properties of the basic structure, e.g. for flux coupling, guiding or shielding magnetic layers
- G11B5/315—Shield layers on both sides of the main pole, e.g. in perpendicular magnetic heads
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (32)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/688,046 US7042682B2 (en) | 2003-10-17 | 2003-10-17 | Fully shielded perpendicular recoding writer |
JP2004303433A JP2005122887A (en) | 2003-10-17 | 2004-10-18 | Method for suppressing magnetic flux leakage of vertical recording type magnetic head, and vertical recording type magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/688,046 US7042682B2 (en) | 2003-10-17 | 2003-10-17 | Fully shielded perpendicular recoding writer |
Publications (2)
Publication Number | Publication Date |
---|---|
US20050083605A1 US20050083605A1 (en) | 2005-04-21 |
US7042682B2 true US7042682B2 (en) | 2006-05-09 |
Family
ID=34521090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/688,046 Active 2024-06-15 US7042682B2 (en) | 2003-10-17 | 2003-10-17 | Fully shielded perpendicular recoding writer |
Country Status (2)
Country | Link |
---|---|
US (1) | US7042682B2 (en) |
JP (1) | JP2005122887A (en) |
Cited By (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050128637A1 (en) * | 2003-12-16 | 2005-06-16 | Seagate Technology Llc | Head for perpendicular recording with reduced erasure |
US20060012914A1 (en) * | 2004-07-13 | 2006-01-19 | Sae Magnetics (H.K.) Ltd. | Thin film magnetic head, head gimbals assembly, head arm assembly, magnetic recording apparatus, and method of manufacturing thin film magnetic head |
US20060092575A1 (en) * | 2004-02-25 | 2006-05-04 | Hitachi Global Storage Technologies Netherlands, B.V. | Magnetic head and magnetic disk storage apparatus mounting the same |
US20060119984A1 (en) * | 2004-12-03 | 2006-06-08 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head with soft magnetic shield and magnetic storage |
US20060245108A1 (en) * | 2005-04-27 | 2006-11-02 | Hitachi Global Storage Technologies | Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head |
US20060245109A1 (en) * | 2005-04-27 | 2006-11-02 | Hitachi Global Storage Technologies | Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset |
US20080112081A1 (en) * | 2006-11-10 | 2008-05-15 | Sae Magnetics (H.K.) Ltd. | Perpendicular magnetic write head, method of manufacturing the same, and magnetic recording apparatus |
US20080222879A1 (en) * | 2007-03-16 | 2008-09-18 | Tdk Corporation | Method of manufacturing magnetic head and method of manufacturing magnetic head substructure |
US20080222878A1 (en) * | 2007-03-16 | 2008-09-18 | Tdk Corporation | Method of manufacturing magnetic head |
US20080247087A1 (en) * | 2007-04-06 | 2008-10-09 | Tdk Corporation | Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer |
US20080259498A1 (en) * | 2007-04-19 | 2008-10-23 | Hitachi Global Storage Technologies | Perpendicular write head with independent trailing shield designs |
US20090122449A1 (en) * | 2007-11-08 | 2009-05-14 | Samsung Electronics Co., Ltd. | Magnetic write head and method of manufacturing the same |
US20090152235A1 (en) * | 2007-12-13 | 2009-06-18 | Wen-Chien David Hsiao | Method of manufacturing a perpendicular magnetic write head with stepped trailing magnetic shield with electrical lapping guide control |
US20110007428A1 (en) * | 2009-07-13 | 2011-01-13 | Seagate Technology Llc | Write pole with a synthesized low magnetization shield |
US20110075299A1 (en) * | 2009-09-30 | 2011-03-31 | Olson Trevor W | Magnetic write heads for hard disk drives and method of forming same |
US20110075295A1 (en) * | 2009-09-30 | 2011-03-31 | Zhang Sue S | Slanted bump design for magnetic shields in perpendicular write heads and method of making same |
US20110076393A1 (en) * | 2009-09-30 | 2011-03-31 | Bonhote Christian R | Trailing plated step |
US20110097601A1 (en) * | 2009-10-26 | 2011-04-28 | Headway Technologies, Inc. | Wrap-around shielded writer with highly homogeneous shield material |
US20110135959A1 (en) * | 2009-12-09 | 2011-06-09 | Liubo Hong | Pmr writer and method of fabrication |
US20110134569A1 (en) * | 2009-12-09 | 2011-06-09 | Allen Donald G | Pmr writer and method of fabrication |
US20110135962A1 (en) * | 2009-12-09 | 2011-06-09 | Liubo Hong | Pmr writer and method of fabrication |
US20110134568A1 (en) * | 2009-12-09 | 2011-06-09 | Yingjian Chen | Pmr writer and method of fabrication |
US8000064B2 (en) | 2007-12-13 | 2011-08-16 | Tdk Corporation | Thin-film magnetic head for perpendicular magnetic recording and method of making the same |
US8015692B1 (en) | 2007-11-07 | 2011-09-13 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) head |
US8166632B1 (en) | 2008-03-28 | 2012-05-01 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) transducer |
US8166631B1 (en) | 2008-08-27 | 2012-05-01 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer having side shields |
US8231796B1 (en) | 2008-12-09 | 2012-07-31 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer having side shields |
US8276258B1 (en) | 2008-08-26 | 2012-10-02 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer |
US8630153B1 (en) | 2012-11-05 | 2014-01-14 | Headway Technologies, Inc. | TAMR writer with a concave leading shield for enhanced field magnitude |
US8720044B1 (en) | 2008-09-26 | 2014-05-13 | Western Digital (Fremont), Llc | Method for manufacturing a magnetic recording transducer having side shields |
US8793866B1 (en) | 2007-12-19 | 2014-08-05 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording head |
US8879207B1 (en) | 2011-12-20 | 2014-11-04 | Western Digital (Fremont), Llc | Method for providing a side shield for a magnetic recording transducer using an air bridge |
US8914969B1 (en) | 2012-12-17 | 2014-12-23 | Western Digital (Fremont), Llc | Method for providing a monolithic shield for a magnetic recording transducer |
US8980109B1 (en) | 2012-12-11 | 2015-03-17 | Western Digital (Fremont), Llc | Method for providing a magnetic recording transducer using a combined main pole and side shield CMP for a wraparound shield scheme |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7031121B2 (en) * | 2003-07-30 | 2006-04-18 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular recording magnetic head with a write shield magnetically coupled to a first pole piece |
JP4260002B2 (en) * | 2003-12-24 | 2009-04-30 | ヒタチグローバルストレージテクノロジーズネザーランドビーブイ | Magnetic head, manufacturing method thereof, and magnetic recording / reproducing apparatus |
JP2006252694A (en) * | 2005-03-11 | 2006-09-21 | Hitachi Global Storage Technologies Netherlands Bv | Magnetic head for vertical recording |
US7365942B2 (en) * | 2005-06-22 | 2008-04-29 | Headway Technologies, Inc. | Thin-film magnetic head |
KR100763904B1 (en) * | 2005-08-12 | 2007-10-05 | 삼성전자주식회사 | Perpendicular magnetic recording head and manufacturing methof for the same |
JP4499044B2 (en) * | 2006-01-04 | 2010-07-07 | ヒタチグローバルストレージテクノロジーズネザーランドビーブイ | Perpendicular magnetic recording medium and magnetic storage device using the same |
US7609479B2 (en) * | 2006-03-10 | 2009-10-27 | Headway Technologies, Inc. | Magnetic head for perpendicular magnetic recording and method of manufacturing same |
US7538976B2 (en) * | 2006-04-25 | 2009-05-26 | Hitachi Global Storage Technologies B.V. | Trailing shield design for reducing wide area track erasure (water) in a perpendicular recording system |
US7576951B2 (en) * | 2006-04-25 | 2009-08-18 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic write head having a magnetic write pole with a concave trailing edge |
JP4287457B2 (en) | 2006-05-11 | 2009-07-01 | 株式会社東芝 | Magnetic head for perpendicular recording and magnetic disk drive |
US7715147B2 (en) * | 2006-10-27 | 2010-05-11 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic write head having a shield that extends below the leading edge of the write pole |
US7889458B2 (en) * | 2006-11-13 | 2011-02-15 | Hitachi Global Storage Technologies Netherlands B.V. | Write head with self-cross biased pole for high speed magnetic recording |
US20080112088A1 (en) * | 2006-11-13 | 2008-05-15 | Hitachi Global Storage Technologies | Perpendicular magnetic write head having a wrap around trailing shield with a flux return path |
US7467461B2 (en) * | 2007-03-20 | 2008-12-23 | Hitachi Global Storage Technologies Netherlands B.V. | Additive gap process to define trailing and side shield gap for a perpendicular write head |
US8102623B2 (en) * | 2007-08-31 | 2012-01-24 | Tdk Corporation | Thin-film magnetic head with a magnetic pole having an inclined step at its top end section surface, magnetic head assembly with the thin-film magnetic head, magnetic disk drive apparatus with the magnetic head assembly, and manufacturing method of thin-film magnetic head |
US8000059B2 (en) * | 2007-12-12 | 2011-08-16 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic write head with a thin wrap around magnetic shield |
US8795763B2 (en) * | 2007-12-26 | 2014-08-05 | Headway Technologies, Inc. | Perpendicular magnetic medium with shields between tracks |
US10387965B1 (en) | 2009-07-09 | 2019-08-20 | United Services Automobile Association (Usaa) | Systems and methods for alternate location of a vehicle |
US8432639B2 (en) * | 2010-05-06 | 2013-04-30 | Headway Technologies, Inc. | PMR writer with π shaped shield |
Citations (17)
Publication number | Priority date | Publication date | Assignee | Title |
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US4547824A (en) * | 1982-12-17 | 1985-10-15 | International Business Machines Corporation | Dual biasing for integrated inductive MR head |
US4656546A (en) | 1985-01-22 | 1987-04-07 | Digital Equipment Corporation | Vertical magnetic recording arrangement |
US4881143A (en) * | 1988-01-19 | 1989-11-14 | Hewlett-Packard Company | Compensated magneto-resistive read head |
US4935832A (en) * | 1987-04-01 | 1990-06-19 | Digital Equipment Corporation | Recording heads with side shields |
US5003423A (en) | 1984-12-03 | 1991-03-26 | Olympus Optical Company Ltd. | Vertical recording magnetic head |
US5075956A (en) | 1988-03-16 | 1991-12-31 | Digital Equipment Corporation | Method of making recording heads with side shields |
US5311387A (en) * | 1987-07-29 | 1994-05-10 | Digital Equipment Corporation | Three-pole magnetic recording head with high readback resolution |
US5515221A (en) | 1994-12-30 | 1996-05-07 | International Business Machines Corporation | Magnetically stable shields for MR head |
US20020071208A1 (en) * | 2000-12-08 | 2002-06-13 | Sharat Batra | Perpendicular magnetic recording head to reduce side writing |
US20020176214A1 (en) * | 2001-05-23 | 2002-11-28 | Shukh Alexander M. | Writer for perpendicular recording with controlled write width |
US20040100737A1 (en) * | 2002-11-26 | 2004-05-27 | Hitachi, Ltd. | Magnetic recording head |
US20040212923A1 (en) * | 2003-04-28 | 2004-10-28 | Kabushiki Kaisha Toshiba | Perpendicular magnetic recording head and magnetic disc apparatus |
US6842313B1 (en) * | 2002-04-08 | 2005-01-11 | Maxtor Corporation | Floating down stream perpendicular write head shield |
US20050068669A1 (en) * | 2003-09-26 | 2005-03-31 | Yimin Hsu | Head for perpendicular recording with a floating trailing shield |
US20050068671A1 (en) * | 2003-09-29 | 2005-03-31 | Yimin Hsu | Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield |
US20050068678A1 (en) * | 2003-09-30 | 2005-03-31 | Yimin Hsu | Head for perpendicular magnetic recording with a shield structure connected to the return pole piece |
US20050141142A1 (en) * | 2003-12-24 | 2005-06-30 | Hitachi Global Storage Technologies Netherlands, B.V. | Magnetic recording head and magnetic disk storage apparatus mounting the magnetic head |
-
2003
- 2003-10-17 US US10/688,046 patent/US7042682B2/en active Active
-
2004
- 2004-10-18 JP JP2004303433A patent/JP2005122887A/en active Pending
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
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US4547824A (en) * | 1982-12-17 | 1985-10-15 | International Business Machines Corporation | Dual biasing for integrated inductive MR head |
US5003423A (en) | 1984-12-03 | 1991-03-26 | Olympus Optical Company Ltd. | Vertical recording magnetic head |
US4656546A (en) | 1985-01-22 | 1987-04-07 | Digital Equipment Corporation | Vertical magnetic recording arrangement |
US4935832A (en) * | 1987-04-01 | 1990-06-19 | Digital Equipment Corporation | Recording heads with side shields |
US5311387A (en) * | 1987-07-29 | 1994-05-10 | Digital Equipment Corporation | Three-pole magnetic recording head with high readback resolution |
US4881143A (en) * | 1988-01-19 | 1989-11-14 | Hewlett-Packard Company | Compensated magneto-resistive read head |
US5075956A (en) | 1988-03-16 | 1991-12-31 | Digital Equipment Corporation | Method of making recording heads with side shields |
US5621592A (en) | 1994-12-30 | 1997-04-15 | International Business Machines Corporation | Magnetic head with magnetically stable shield layers and/or write poles |
US5515221A (en) | 1994-12-30 | 1996-05-07 | International Business Machines Corporation | Magnetically stable shields for MR head |
US20020071208A1 (en) * | 2000-12-08 | 2002-06-13 | Sharat Batra | Perpendicular magnetic recording head to reduce side writing |
US20020176214A1 (en) * | 2001-05-23 | 2002-11-28 | Shukh Alexander M. | Writer for perpendicular recording with controlled write width |
US6842313B1 (en) * | 2002-04-08 | 2005-01-11 | Maxtor Corporation | Floating down stream perpendicular write head shield |
US20040100737A1 (en) * | 2002-11-26 | 2004-05-27 | Hitachi, Ltd. | Magnetic recording head |
US20040212923A1 (en) * | 2003-04-28 | 2004-10-28 | Kabushiki Kaisha Toshiba | Perpendicular magnetic recording head and magnetic disc apparatus |
US20050068669A1 (en) * | 2003-09-26 | 2005-03-31 | Yimin Hsu | Head for perpendicular recording with a floating trailing shield |
US20050068671A1 (en) * | 2003-09-29 | 2005-03-31 | Yimin Hsu | Magnetic transducer for perpendicular magnetic recording with single pole write head with trailing shield |
US20050068678A1 (en) * | 2003-09-30 | 2005-03-31 | Yimin Hsu | Head for perpendicular magnetic recording with a shield structure connected to the return pole piece |
US20050141142A1 (en) * | 2003-12-24 | 2005-06-30 | Hitachi Global Storage Technologies Netherlands, B.V. | Magnetic recording head and magnetic disk storage apparatus mounting the magnetic head |
Cited By (56)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050128637A1 (en) * | 2003-12-16 | 2005-06-16 | Seagate Technology Llc | Head for perpendicular recording with reduced erasure |
US7233457B2 (en) * | 2003-12-16 | 2007-06-19 | Seagate Technology Llc | Head for perpendicular recording with reduced erasure |
US20060092575A1 (en) * | 2004-02-25 | 2006-05-04 | Hitachi Global Storage Technologies Netherlands, B.V. | Magnetic head and magnetic disk storage apparatus mounting the same |
US7684149B2 (en) * | 2004-02-25 | 2010-03-23 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head and magnetic disk storage apparatus mounting the same |
US20060012914A1 (en) * | 2004-07-13 | 2006-01-19 | Sae Magnetics (H.K.) Ltd. | Thin film magnetic head, head gimbals assembly, head arm assembly, magnetic recording apparatus, and method of manufacturing thin film magnetic head |
US7450349B2 (en) * | 2004-12-03 | 2008-11-11 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head with soft magnetic shield and magnetic storage |
US20060119984A1 (en) * | 2004-12-03 | 2006-06-08 | Hitachi Global Storage Technologies Netherlands B.V. | Magnetic head with soft magnetic shield and magnetic storage |
US7639450B2 (en) * | 2005-04-27 | 2009-12-29 | Hitachi Global Storage Technologies Netherlands B.V. | Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head |
US20060245108A1 (en) * | 2005-04-27 | 2006-11-02 | Hitachi Global Storage Technologies | Flux shunt structure for reducing return pole corner fields in a perpendicular magnetic recording head |
US20060245109A1 (en) * | 2005-04-27 | 2006-11-02 | Hitachi Global Storage Technologies | Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset |
US7551396B2 (en) * | 2005-04-27 | 2009-06-23 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular magnetic write head having a studded trailing shield compatible with read/write offset |
US8400732B2 (en) * | 2006-11-10 | 2013-03-19 | Sae Magnetics (H.K.) Ltd. | Perpendicular magnetic write head, having side shields coupled to a leading shield and apart from a trailing shield |
US20080112081A1 (en) * | 2006-11-10 | 2008-05-15 | Sae Magnetics (H.K.) Ltd. | Perpendicular magnetic write head, method of manufacturing the same, and magnetic recording apparatus |
US20080222879A1 (en) * | 2007-03-16 | 2008-09-18 | Tdk Corporation | Method of manufacturing magnetic head and method of manufacturing magnetic head substructure |
US7832085B2 (en) | 2007-03-16 | 2010-11-16 | Tdk Corporation | Method of manufacturing magnetic head and method of manufacturing magnetic head substructure |
US20080222878A1 (en) * | 2007-03-16 | 2008-09-18 | Tdk Corporation | Method of manufacturing magnetic head |
US20080247087A1 (en) * | 2007-04-06 | 2008-10-09 | Tdk Corporation | Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer |
US7995308B2 (en) | 2007-04-06 | 2011-08-09 | Tdk Corporation | Magnetic head for perpendicular magnetic recording and method of manufacturing same, the magnetic head incuding pole layer and two shields sandwiching the pole layer |
US20080259498A1 (en) * | 2007-04-19 | 2008-10-23 | Hitachi Global Storage Technologies | Perpendicular write head with independent trailing shield designs |
US7894159B2 (en) | 2007-04-19 | 2011-02-22 | Hitachi Global Storage Technologies Netherlands B.V. | Perpendicular write head with independent trailing shield designs |
US8015692B1 (en) | 2007-11-07 | 2011-09-13 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) head |
US20090122449A1 (en) * | 2007-11-08 | 2009-05-14 | Samsung Electronics Co., Ltd. | Magnetic write head and method of manufacturing the same |
US8233236B2 (en) * | 2007-11-08 | 2012-07-31 | Seagate Technology International | Magnetic write head with side shield and gap layer |
US20090152235A1 (en) * | 2007-12-13 | 2009-06-18 | Wen-Chien David Hsiao | Method of manufacturing a perpendicular magnetic write head with stepped trailing magnetic shield with electrical lapping guide control |
US7990651B2 (en) | 2007-12-13 | 2011-08-02 | Hitachi Global Storage Technologies Netherlands B.V. | Method of manufacturing a perpendicular magnetic write head with stepped trailing magnetic shield with electrical lapping guide control |
US8000064B2 (en) | 2007-12-13 | 2011-08-16 | Tdk Corporation | Thin-film magnetic head for perpendicular magnetic recording and method of making the same |
US8793866B1 (en) | 2007-12-19 | 2014-08-05 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording head |
US8166632B1 (en) | 2008-03-28 | 2012-05-01 | Western Digital (Fremont), Llc | Method for providing a perpendicular magnetic recording (PMR) transducer |
US8576517B1 (en) | 2008-08-26 | 2013-11-05 | Western Digital (Fremont), Llc | Magnetic recording transducer having side shields between the coils and the air-bearing surface |
US8276258B1 (en) | 2008-08-26 | 2012-10-02 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer |
US8488272B1 (en) | 2008-08-27 | 2013-07-16 | Western Digital (Fremont), Llc | Magnetic recording transducer having side shields |
US8166631B1 (en) | 2008-08-27 | 2012-05-01 | Western Digital (Fremont), Llc | Method for fabricating a magnetic recording transducer having side shields |
US8720044B1 (en) | 2008-09-26 | 2014-05-13 | Western Digital (Fremont), Llc | Method for manufacturing a magnetic recording transducer having side shields |
US8231796B1 (en) | 2008-12-09 | 2012-07-31 | Western Digital (Fremont), Llc | Method and system for providing a magnetic recording transducer having side shields |
US8472136B2 (en) | 2009-07-13 | 2013-06-25 | Seagate Technology Llc | Write pole with a synthesized low magnetization shield |
US20110007428A1 (en) * | 2009-07-13 | 2011-01-13 | Seagate Technology Llc | Write pole with a synthesized low magnetization shield |
US20110076393A1 (en) * | 2009-09-30 | 2011-03-31 | Bonhote Christian R | Trailing plated step |
US8724258B2 (en) | 2009-09-30 | 2014-05-13 | HGST Netherlands B.V. | Slanted bump design for magnetic shields in perpendicular write heads and method of making same |
US20110075299A1 (en) * | 2009-09-30 | 2011-03-31 | Olson Trevor W | Magnetic write heads for hard disk drives and method of forming same |
US20110075295A1 (en) * | 2009-09-30 | 2011-03-31 | Zhang Sue S | Slanted bump design for magnetic shields in perpendicular write heads and method of making same |
US8449752B2 (en) | 2009-09-30 | 2013-05-28 | HGST Netherlands B.V. | Trailing plated step |
US8842389B2 (en) * | 2009-10-26 | 2014-09-23 | Headway Technologies, Inc. | Wrap-around shielded writer with highly homogeneous shield material |
US20110097601A1 (en) * | 2009-10-26 | 2011-04-28 | Headway Technologies, Inc. | Wrap-around shielded writer with highly homogeneous shield material |
US8451560B2 (en) | 2009-12-09 | 2013-05-28 | HGST Netherlands B.V. | Magnetic head with flared write pole with multiple non-magnetic layers thereover |
US8498078B2 (en) | 2009-12-09 | 2013-07-30 | HGST Netherlands B.V. | Magnetic head with flared write pole having multiple tapered regions |
US8553360B2 (en) | 2009-12-09 | 2013-10-08 | HGST Netherlands B.V. | Magnetic recording head having write pole with higher magnetic moment towards trailing edge |
US20110134568A1 (en) * | 2009-12-09 | 2011-06-09 | Yingjian Chen | Pmr writer and method of fabrication |
US20110135959A1 (en) * | 2009-12-09 | 2011-06-09 | Liubo Hong | Pmr writer and method of fabrication |
US20110134569A1 (en) * | 2009-12-09 | 2011-06-09 | Allen Donald G | Pmr writer and method of fabrication |
US20110135962A1 (en) * | 2009-12-09 | 2011-06-09 | Liubo Hong | Pmr writer and method of fabrication |
US8233235B2 (en) | 2009-12-09 | 2012-07-31 | Hitachi Global Storage Technologies Netherlands B.V. | PMR writer having a tapered write pole and bump layer and method of fabrication |
US8879207B1 (en) | 2011-12-20 | 2014-11-04 | Western Digital (Fremont), Llc | Method for providing a side shield for a magnetic recording transducer using an air bridge |
US8630153B1 (en) | 2012-11-05 | 2014-01-14 | Headway Technologies, Inc. | TAMR writer with a concave leading shield for enhanced field magnitude |
US9330690B2 (en) | 2012-11-05 | 2016-05-03 | Headway Technologies, Inc. | Method of forming a TAMR writer with a concave leading shield for enhanced field magnitude |
US8980109B1 (en) | 2012-12-11 | 2015-03-17 | Western Digital (Fremont), Llc | Method for providing a magnetic recording transducer using a combined main pole and side shield CMP for a wraparound shield scheme |
US8914969B1 (en) | 2012-12-17 | 2014-12-23 | Western Digital (Fremont), Llc | Method for providing a monolithic shield for a magnetic recording transducer |
Also Published As
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JP2005122887A (en) | 2005-05-12 |
US20050083605A1 (en) | 2005-04-21 |
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